Function recoverInstallWrapper

modules/dasSQLITE/sqlite/shell.c:16001–16014

** Install the VFS wrapper around the file-descriptor open on the input ** database for recover handle p. Mutex RECOVER_MUTEX_ID must be held ** when this function is called. */

** when this function is called.
*/
static void recoverInstallWrapper(sqlite3_recover *p){
  sqlite3_file *pFd = 0;
  assert( recover_g.pMethods==0 );
  recoverAssertMutexHeld();
  sqlite3_file_control(p->dbIn, p->zDb, SQLITE_FCNTL_FILE_POINTER, (void*)&pFd);
  assert( pFd==0 || pFd->pMethods!=&recover_methods );
  if( pFd && pFd->pMethods ){
    int iVersion = 1 + (pFd->pMethods->iVersion>1 && pFd->pMethods->xShmMap!=0);
    recover_g.pMethods = pFd->pMethods;
    recover_g.p = p;
    recover_methods.iVersion = iVersion;
    pFd->pMethods = &recover_methods;
  }
}

/*
** Uninstall the VFS wrapper that was installed around the file-descriptor open